Management of Castration-Resistant Prostate Cancer with Oligometastases
This research trial is for men with advanced prostate cancer who have already had hormone treatment, but their cancer has started to grow again and spread to a few new spots (called oligometastases). We want to see if adding a special type of focused radiation, called SBRT, to their usual hormone therapy can help. The standard treatment involves hormone therapy with medicines like Enzalutamide. The study compares giving this standard treatment alone versus giving it with SBRT to the cancer spots. The main aim is to find out if SBRT can delay the cancer from spreading further and put off the need for different kinds of treatments, ultimately improving patients' quality of life and survival.
Överblick
Vad handlar denna studie om?
Prostate cancer is the most common cancer affecting men. When prostate cancer spreads to other parts of the body, it's called metastatic prostate cancer. Often, men receive hormone therapy to help control the cancer, but over time, the cancer can become resistant to this treatment and start growing again, even with ongoing hormone therapy. This is called 'castration-resistant prostate cancer' (CRPC).
Recently, newer hormone therapies like Enzalutamide have become available for CRPC. This study explores an exciting new idea: what if we could target these new cancer spots, called 'oligometastases' (meaning a limited number of new cancer sites), with a special type of very focused radiation treatment called Stereotactic Body Radiotherapy (SBRT)? The thinking behind this is that by zapping these specific spots, we might be able to keep the cancer from spreading further and delay the need for more intensive treatments.
So, this trial is comparing two approaches for men with CRPC who have a limited number of new cancer spots. One group will receive the current standard care, which is continuing their current hormone treatment along with a new-generation hormone therapy like Enzalutamide. The other group will receive this exact same standard treatment, but with the addition of SBRT directly to their new cancer spots. We want to understand if adding SBRT can really make a difference by slowing down the cancer's growth and giving patients more time before they need other therapies.
Viktiga punkter
- This study investigates a new approach for prostate cancer that has resisted hormone therapy and spread to a few spots.
- It aims to see if focused radiation (SBRT) can delay cancer progression when added to standard hormone treatment.
- Participation involves random assignment to either standard hormone therapy or standard therapy plus SBRT.
- Regular checks, including scans and blood tests, will monitor your health and cancer status.
- The study hopes to find ways to extend the time before more treatments are needed and improve quality of life.
- You can withdraw from the study at any time without affecting your future medical care.
Vem kan vara berättigad?
To be able to join this study, you need to be a man aged 18 or older with prostate cancer that has been confirmed by a biopsy. You must be currently receiving hormone therapy (either with medication or surgery to remove the testicles) and your testosterone levels need to be low. Your cancer must have started to grow again despite hormone therapy, and you need to have a limited number of new cancer spots, which can be treated with SBRT. These spots should not have been previously treated with radiation.
We're looking for men who haven't had chemotherapy for their prostate cancer before. You'll also need to meet certain health criteria, which the study doctors will check, and be well enough to take part in the study activities.
There are also some reasons why you might not be able to join. For example, if you have too many cancer spots, if the cancer has spread to your brain or liver, or if any of your cancer spots have already been treated with radiation, you wouldn't be eligible. Your study doctor will review all the detailed rules with you to see if this trial is a good fit.
Kan denna studie passa dig?
Svara på dessa snabba frågor för att se om du kan vara berättigad. Detta är endast en vägledning — forskarteamet fattar det slutgiltiga beslutet.
- Are you a man aged 18 or older?
- Do you have prostate cancer confirmed by biopsy?
- Are you currently receiving hormone therapy (or have had surgical removal of testicles)?
- Has your prostate cancer started growing again despite hormone therapy?
- Do you have a small, limited number of new cancer spots that can be treated with radiation?
- Have you NOT had chemotherapy for your prostate cancer before?
Vad innebär deltagande?
If you decide to join this study, you will first have some checks, including detailed scans to confirm where the cancer is and blood tests. You will then be randomly assigned, like flipping a coin, to one of two groups: either you'll receive the standard hormone therapy (your usual hormone treatment plus a new hormone drug like Enzalutamide) or you'll receive the standard hormone therapy AND a special type of radiation (SBRT) to your cancer spots.
Throughout the study, you'll have regular follow-up appointments. These will include blood tests, especially to check your PSA levels, which will be done every 6 to 12 weeks. You’ll also have repeat scans at specific times (after 6, 9, 12, 18, and 24 months) or if your PSA levels suggest the cancer might be growing again. The total length of your participation will depend on how your cancer responds to treatment.
Potentiella risker och fördelar
Platser (11)
- BC CANCER VancouverVerifierat postnummerVancouver, Kanada
- CancerCare ManitobaVerifierat postnummerWinnipeg, Kanada
- Nova Scotia Cancer CentreVerifierat postnummerHalifax, Kanada
- Juravinski Cancer CentreVerifierat postnummerHamilton, Kanada
- London Regional Cancer Program - London Health Sciences CentreVerifierat postnummerLondon, Kanada
- Hopital Charles-LemoyneVerifierat postnummerLongueuil, Canada
- Centre Hospitalier de l'Université de Montréal (CHUM) - Hopital Notre DameVerifierat postnummerMontreal, Kanada
- Jewish General Hospital, McGill UniversityVerifierat postnummerMontreal, Kanada
- McGill University Health CenterVerifierat postnummerMontreal, Kanada
- CHU de Quebec-Universite LavalVerifierat postnummerQuébec, Kanada
- Centre Hospitalier régional de Trois-RivièresVerifierat postnummerTrois-Rivières, Kanada
Vanliga frågor
What does 'Castration-Resistant Prostate Cancer' mean?
It means your prostate cancer is still growing, even though you've been on hormone therapy to lower your testosterone levels.
What are 'Oligometastases'?
These are a small, limited number of cancer spots that have spread from the original prostate cancer to other parts of your body.
Vad är SBRT?
SBRT stands for Stereotactic Body Radiotherapy. It's a very precise type of radiation that delivers high doses to specific cancer spots, aiming to destroy them.
Will I definitely get the new SBRT treatment?
You will be randomly assigned to either receive the standard hormone therapy alone or the standard therapy plus SBRT. You won't be able to choose which group you're in.
What are LHRH agonists and Enzalutamide?
LHRH agonists are medications that lower testosterone. Enzalutamide is a newer hormone therapy that further blocks the effects of hormones on prostate cancer cells.
Hur du får reda på mer
Prata alltid med din läkare eller specialist innan du bestämmer dig för att delta i en studie.
Diskussion
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